What Is The Purpose Of Collisions In 3D Games?
Before we get everything rolling, it's best that you understand the actual definition behind collisions.
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Updated November 2026. This was first published on 8 November 2022. The idea is the same. Any number below is what the original piece said then. It is not a new count.
Key takeaways
- Before we get everything rolling, it’s best that you understand the actual definition behind collisions.
- They are the invisible resources that are added to distinguish the rule regarding an object slamming or colliding with another.
- Objects come in contact with numerous aspects of a game, such as detecting where the characters are allowed to walk, where a hole should appear when a bullet is shot.
Before we get everything rolling, it’s best that you understand the actual definition behind collisions. They are the invisible resources that are added to distinguish the rule regarding an object slamming or colliding with another. Objects come in contact with numerous aspects of a game, such as detecting where the characters are allowed to walk, where a hole should appear when a bullet is shot. step sound effect should be played depending upon the impacted object so on.
We aren’t going to move deep into that; But, we will discuss the various collisions to get a better insight.
Various Sorts of Collisions #
Basic Collisions #
They are a simple representation of geometry that doesn’t have to be detailed since their main role is navigation, like the sounds of walking when in contact with various ground objects.
Complex Collisions #
As the name suggests, they are more complicated because they are fundamentally used for an advanced basic collision check. For instance, the spawning of bullet holes. In easier words, these collisions should be more precise as bullets are smaller than characters or other gigantic objects. They should be created more perplexingly to appropriately display the holes and play the sound of the bullets when slammed into an object.
Significant Note:**The reason geometry can’t be precisely copied, and only collisions can, is that calculating the impacts on such shapes is hard as it requires immense data on the vertex.
How Would You Identify Collisions in Video Games? #
There might be numerous approaches to distinguish collisions in a video game. In any case, a commonly used strategy is through a hidden shape like the Hitbox, which functions by identifying ongoing or real-time collisions.
You might come across it in a rectangular (2D Games) or cuboidal structure (3D Games) that is attached to an object or character to ensure its accuracy during movements. Hitboxes are frequently used to identify single-direction collisions, for instance, a bullet hole or a character getting hit (as referenced earlier).
The Hurt Box is also used to separate the damage dealt, and the damage received. For example, you can land a hit if the attacker’s punch connects with the Hurt Box attached to the opponent. In this manner, causing both the Hitboxes impact and exchange blows.
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Final Thoughts #
There was once an era where none of this existed, and by that, I mean video games with unfathomable designs, graphics, gameplay and visuals. But, the advanced tools and technologies these days allow you to interact with ‘otherworldly digital beings’ through gaming platforms and control the environmental elements surrounding you. So, let me ask you, wouldn’t you want to be a part of this radically rising trend?
How to use this idea #
Stay with the questions the original already asked. Do not treat them as new proof.
Start with “Various Sorts of Collisions”. Check it against what you can see. The draft did not add a later number for this part.
Start with “Basic Collisions”. Check it against what you can see. The draft did not add a later number for this part.
Start with “Complex Collisions”. Check it against what you can see. The draft did not add a later number for this part.
Start with “How Would You Identify Collisions in Video Games?”. Check it against what you can see. The draft did not add a later number for this part.
Start with “Final Thoughts”. Check it against what you can see. The draft did not add a later number for this part.
What the original did not show #
The draft did not include a later count, a new quote, or a promise about today. Read the claims above as a record of the day it was written.
Questions and answers #
How Would You Identify Collisions in Video Games? #
There might be numerous approaches to distinguish collisions in a video game. In any case, a commonly used strategy is through a hidden shape like the Hitbox, which functions by identifying ongoing or real-time collisions.
What the original did not show? #
The draft did not include a later count, a new quote, or a promise about today. Read the claims above as a record of the day it was written.